Oh? Let's good =3
I'd imagine a solution to this is hiding the string in the back for each website/domain, and presenting the name + number (ex habla.news/c/gaming.1 or something along those lines, where the community address is hidden, and new communities with the same name and a different address would just be presented in the url as (ex habla.news/c/gaming.3 , gaming.3, etc), with all address being visible in the community page/profile itself for those who want that specific address.